If you put a number next to the on screen menu, and a small keypad below the screen, they can use the screen in the beginning and naturally start using the keypad to speed up orders over time. They'll teach themselves because in crunch time they'll want to become faster so they can get more orders to make more tips, etc
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Unfortunately, as a company developing POS systems, you can't just tell your customers that.
You're right on the minimal taps thing though. It shouldn't take more than 3 taps to send a basic order through (e.g. a beer).
If you put a number next to the on screen menu, and a small keypad below the screen, they can use the screen in the beginning and naturally start using the keypad to speed up orders over time. They'll teach themselves because in crunch time they'll want to become faster so they can get more orders to make more tips, etc
Expert mode. Most applications would do well with that.
Well, in this case, he ordered a custom made POS for all his bars/restaurants. So it was a specific case.